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START UP together in the same package STOP AMMO START and START Biodigest. It allows to quickly start the biological filtration of aquarium and then introduce a few hours after the first fish.
START UP NANO may be also used to treat a nitrite peak. START STOP AMMO is a product based on extracts of specific plants whose main property is to trap the nitrogen from ammonia. Biodigest START is composed of bacterial natural nitrifying, denitrifying and optional selected for their ability to quickly initiate the nitrogen cycle and thus to transform the ammonia into nitrites, nitrates and nitrites into nitrate nitrogen.
START UP allows you to rapidly introduce third of your toughest fish in your aquarium (after 4 hours in fresh water after 12 hours in seawater).

I would STRONGLY recommend this product to anyone cycling a saltwater tank. I manufacture says it works in fresh water too, but I have never used it in a fresh water set.

I used this product cycling my 90 gallon SW tank. I did shortened the cycle by anywhere’s from 2 to 4 weeks in my estimation. Do not think for a minute it will allow you to add fish within 12 hours of adding it as the label says, but it will act like steroids for cycle shaving a few weeks off the process